| hi i have a c200 and once i had the same problem, the problem was the sam module when the batery is discharge or change the module don't work idon't know if you can program the module like the c200, well idon't know if your car have sam module.
follow the steps
unplug the batery and wait around 10 minutes
conect the batery and when the rpm are regular turn your steering wheel (slow) all to the left and all to the right return to the original position and try open a window or swich on the hazards
if you can't you need a dealer who program your car or search another way for manual programing
check te fuses!!! | 
